How to virtualize Ubuntu on Mac OS X
James Bannan25 December 2008, 12:00 PM
Want to run Ubuntu Linux within Mac OS X for free -- without paying for Parallels or VMWare? Our step-by-step tutorial will have you up and running in no time!
Page 3 - Step 3 - Create New Ubuntu VM

Click the New icon to start the New Virtual Machine Wizard,
- Click Next
- Type in "Ubuntu" as the name and select "Ubuntu" from the "OS Type" dropdown menu. Click Next

- Assign as much memory as you like beyond the base memory recommendation. In this case 256MB is the recommended amount. Click Next

- On the "Virtual Hard Disk" screen, click "New" to launch the Create New Virtual Disk Wizard, and click Next.
- Choose whichever disk type you prefer. The advantage of a fixed-size image is that as all the space is reserved up front, there's an ongoing disk performance benefit as the image doesn't need to keep expanding as you use it. The downside is that all the space is used at once and it takes longer to create. Click Next
- Name the image file accordingly and assign some space (at least 8GB for the Ubuntu boot disk). Click Next, and then Finish. The newly-created Ubuntu.vdi is now attached to the VM as the primary disk. Click Next and then Finish, and the VM is created